Janus powerampt from Brazil! NEED ADVICE

[Wozet]

got a suitcase 88 (#2378) 100w (dual 50W) janus w sliders, in brazil

I fucked up changing components on the power amp. used the Vintage Vibe rebuild kit. rebuilt power unit first. while rebuilding the power amp I plugged Q2 and Q5 backwards, that is not right combo of CBE pins. powered the amp up and got no sound from that channel. so upon dissasembly I realized my mistake.

so question 1 is Would the Q5,2 have burnt at that point?

I disassembled them and soldered them correctly and powered the amp again. Amp sound, Smoke and Q6 literally cracked. swapped Q6 for another one, powered up and R15, R17 burnt. I guess I´m up for a second rebuild now, kit included.

questions:
why did the resistors burn? due to wrongly  connected7burnt Q2,Q5 or Q6?
sourcing the exact resistors might be tricky, is there any tolerance?